Indication information sending method, indication information receiving method, and device

Abstract

A first station generates indication information of any one of an operating channel, an operating band, or an operating channel and an operating band of a wake-up receiver in a second station. The first station sends the indication information, so that the wake-up receiver in the second station works on the indicated operating channel or the indicated operating band. The first station controls the operating channel or the operating band of the wake-up receiver in the second station by generating the indication information.

What is claimed is: 
     
       1. A method, comprising:
 receiving, by a second station from a first station, a request message that requests the second station to provide channel information of a channel quality of a channel between the first station and the second station;
 in response to receiving the request message, sending, by the second station, the channel information to the first station; 
 
 receiving, by the second station from the first station, indication information, wherein the second station comprises a wake-up receiver and a main radio circuit, the indication information is generated based on the channel information, and the indication information indicates:
 a first operating channel of the wake-up receiver for listening for a wakeup packet; 
 a first operating band of the wake-up receiver for listening for a wakeup packet; or 
 the first operating channel of the wake-up receiver for listening for a wakeup packet and the first operating band of the wake-up receiver for listening for a wakeup packet; 
 
 in response to receiving the indication information, changing, by the second station, a currently-used operating channel of the wake-up receiver or a currently-used operating band of the wake-up receiver according to content of the indication information, causing the wake-up receiver to listen on the indicated first operating channel or the indicated first operating band for a wakeup packet corresponding to the second station; and 
 in response to receiving a wake-up packet corresponding to the second station on the currently-used operating channel of the wake-up receiver or the currently-used operating band of the wake-up receiver, causing, by the wake-up receiver, the main radio circuit to wake up using a currently-used operating channel of the main radio circuit. 
 
     
     
       2. The method according to  claim 1 , wherein the channel information comprises:
 channel state information (CSI) of channels or bands that are selectable by the wake-up receiver; 
 a channel quality sequence of channels or bands that are selectable by the wake-up receiver; or 
 a number of the first operating channel or the first operating band. 
 
     
     
       3. The method according to  claim 1 , wherein receiving the indication information comprises:
 receiving, by the wake-up receiver, the indication information; or 
 receiving, by the main radio circuit, the indication information; or 
 receiving, by both the wake-up receiver and the main radio circuit, the indication information. 
 
     
     
       4. A first station, comprising:
 a processor; and 
 a non-transitory computer-readable storage medium storing a program to be executed by the processor, the program including instructions for:
 send a request message to a second station that requests the second station to provide channel information of a channel quality of a channel between the first station and the second station; 
 obtain the channel information that is sent by the second station, the channel information being sent in response to the request message; 
 selecting, based on the received channel information, a first operating channel of a wake-up receiver of the second station for listening for a wakeup packet, a first operating band of the wake-up receiver for listening for a wakeup packet, or the first operating channel of the wake-up receiver for listening for a wakeup packet and the first operating band of the wake-up receiver for listening for a wakeup packet; 
 generating, based on the selected first operating channel of the wake-up receiver for listening for a wakeup packet, the selected first operating band of the wake-up receiver for listening for a wakeup packet, or the selected the first operating channel of the wake-up receiver for listening for a wakeup packet and the first operating band of the wake-up receiver for listening for a wakeup packet, indication information of the wake-up receiver of the second station, the indication information indicating:
 the selected first operating channel of the wake-up receiver for listening for a wakeup packet; 
 the selected first operating band of the wake-up receiver for listening for a wakeup packet; or 
 the selected first operating channel of the wake-up receiver for listening for a wakeup packet and the selected first operating band of the wake-up receiver for listening for a wakeup packet; and 
 
 
 a transceiver, configured to send the indication information, causing the wake-up receiver of the second station to listen on the indicated first operating channel or the indicated first operating band for a wakeup packet corresponding to the second station. 
 
     
     
       5. The first station according to  claim 4 , wherein the channel information comprises:
 channel state information (CSI) of channels or bands that are selectable by the wake-up receiver. 
 
     
     
       6. The first station according to  claim 4 , wherein the second station further comprises a main radio circuit, and the transceiver is configured to:
 send the indication information to the wake-up receiver; or 
 send the indication information to the main radio circuit; or 
 send the indication information to both the wake-up receiver and the main radio circuit. 
 
     
     
       7. The first station according to  claim 6 , wherein the indication information comprises:
 a sequence number indicating the selected first operating channel, the selected first operating band, or the selected first operating channel and the selected first operating band, wherein the selected first operating channel is of the wake-up receiver and the selected first operating band is of the wake-up receiver. 
 
     
     
       8. The first station according to  claim 6 , wherein the indication information comprises:
 content instructing the main radio circuit to feed back a response message. 
 
     
     
       9. The first station according to  claim 6 , wherein the indication information comprises:
 content indicating the selected first operating channel, the selected first operating band, or the selected first operating channel and the selected first operating band, wherein the selected first operating channel is of the main radio circuit and the selected first operating band is of the main radio circuit. 
 
     
     
       10. The first station according to  claim 6 , wherein the indication information comprises:
 content used to manage or control the main radio circuit. 
 
     
     
       11. The first station according to  claim 4 , wherein the channel information comprises:
 a channel quality sequence of channels that are selectable by the wake-up receiver. 
 
     
     
       12. The first station according to  claim 4 , wherein the channel information comprises:
 a channel quality sequence of bands that are selectable by the wake-up receiver. 
 
     
     
       13. A second station, comprising:
 a transceiver, configured to:
 receive, from a first station, a request message that requests the second station to provide channel information of a channel quality of a channel between the first station and the second station; 
 in response to receiving the request message, send the channel information to the first station; and 
 receive indication information, wherein the second station comprises a wake-up receiver and a main radio circuit, the indication information comprises content indicating a first operating channel of the wake-up receiver for listening for a wakeup packet or a first operating band of the wake-up receiver for listening for a wakeup packet, and the indication information is selected based on the channel information; and 
 
 a processor; and 
 a non-transitory computer-readable storage medium storing a program to be executed by the processor, the program including instructions for:
 in response to receiving the indication information, changing a currently-used operating channel of the wake-up receiver or a currently-used operating band of the wake-up receiver according to the content of the indication information, causing the wake-up receiver to listen on the indicated first operating channel or the indicated first operating band for a wakeup packet corresponding to the second station; and 
 in response to receiving a wakeup packet corresponding to the second station on the currently-used operating channel of the wake-up receiver or the currently-used operating band of the wake-up receiver, causing the wake-up receiver to wake the main radio circuit up using a currently-used operating channel of the main radio circuit. 
 
 
     
     
       14. The second station according to  claim 13 , wherein the channel information comprises:
 channel state information (CSI) of channels or bands that are selectable by the wake-up receiver; 
 a channel quality sequence of channels or bands that are selectable by the wake-up receiver; or 
 a number of the first operation channel or the first operating band. 
 
     
     
       15. The second station according to  claim 13 , wherein the transceiver is comprised in:
 the wake-up receiver. 
 
     
     
       16. The second station according to  claim 13 , wherein the transceiver is comprised in:
 the main radio circuit. 
 
     
     
       17. A second station, comprising:
 a main radio circuit; and 
 a wake-up receiver; 
 wherein the main radio circuit is configured to:
 receive indication information; and 
 send the indication information to the wake-up receiver, wherein the indication information indicates a first operating channel of the wake-up receiver for listening for a wakeup packet, a first operating band of the wake-up receiver for listening for a wakeup packet, or the first operating channel of the wake-up receiver for listening for a wakeup packet and the first operating band of the wake-up receiver for listening for a wakeup packet, and the indication information is generated based on channel information of a channel quality of a channel between the second station and a first station; and 
 
 wherein the wake-up receiver is configured to:
 obtain the indication information; 
 in response to obtaining the indication information, change a currently-used operating channel or a currently-used operating band for listening for a wakeup packet according to content of the indication information; and 
 in response to receiving a wakeup packet corresponding to the second station on the currently-used operating channel of the wake-up receiver or the currently-used operating band of the wake-up receiver, cause the wake-up receiver to wake the main radio circuit up. 
 
 
     
     
       18. The second station according to  claim 17 , wherein the indication information comprises:
 a sequence number indicating the first operating channel of the wake-up receiver for listening for a wakeup packet, the first operating band of the wake-up receiver for listening for a wakeup packet, or the first operating channel of the wake-up receiver for listening for a wakeup packet and the first operating band of the wake-up receiver for listening for a wakeup packet; or 
 content instructing the main radio circuit to feed back a response message; or 
 content used to manage or control the main radio circuit. 
 
     
     
       19. The second station according to  claim 17 , wherein the wake-up receiver is further configured to send the channel information, and the channel information comprises:
 a channel quality sequence of channels or bands that are selectable by the wake-up receiver. 
 
     
     
       20. The second station according to  claim 17 , wherein the main radio circuit is further configured to send the channel information, and the channel information comprises:
 channel state information (CSI) of channels or bands that are selectable by the wake-up receiver; 
 a channel quality sequence of channels or bands that are selectable by the wake-up receiver; and 
 a number the first operating channel or the first operating band.